Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 25.06.2025 11:01

Brain Tumors
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
Parkinson's disease
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Sleep disorders
Bipolar disorder
Delirium tremens
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Alzheimer's disease,
Hallucinogen use
⁉️sources from my experiences and internet research ⁉️
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Alcohol withdrawal
Charles Bonnet syndrome
Withdrawal from benzodiazepines
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:
Narcolepsy
Stress
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Alcohol
PTSD
Affective disorders
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Fever
Head injury
Mental disorder
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Dementia with Lewy bodies
Infection
Migraines
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Pharmaceutical drug (abuse or side effects)
Seizures
Grief (yes, sadly)